/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Topo/TopologicalFace.h
Update the bounding box with an approximation of the surface based of n iso curves
void UpdateBBox ( int32 IsoCount, const double ApproximationFactor, [FBBoxWithNormal](API\Runtime\CADKernel\CADKernel\Topo\FBBoxWithNormal) & BBox )